A hinged panel between the loader uprights, along with the tilting hood, provide a wide-open hydraulic reservoir fill port. Its large diameter easily accommodates a five-gallon (18.9 L) can.

Hydraulic Oil Filter

The hydraulic oil filter, previously found at the side of the engine, has been relocated to the back side of the engine between the loader uprights to provide greater engine access. The 10-micron spin-on filter can easily be removed from ground line.

10W/30 Hydraulic Oil

The approved and recommended oil for the hydraulic system is 10W/30 CC fluid. This is the same as the recommended engine oil. Fewer oil types to stock and buy is a new 580K benefit.

Integral Cooler Charge Relief and Oil Filter

The hydraulic oil cooler charge relief valve is now built into the hydraulic filter head assembly instead of being an external component in the hydraulic circuit. Because this design has less external plumbing and fewer lines, it improves protection against leaks.